RECENT BIOCOMPATIBLE METALLIC MATERIALS

摘要

Biocompatible metallic materials are mainly used for replacing failed hard tissue. Main biocompatible metallic materials, that is, metallic biomaterials are stainless steels, Co based alloys, and titanium and its alloys. Recently, titanium alloys are getting much attention for biomaterials. The various kinds of new high strength #alpha# + #beta# and low modulus #beta# type titanium alloys composed of non-toxic elements like Nb, Ta, Zr; etc are developed for biomedical applications because of the toxicity of alloying elements and lack of mechanical biocompatibility of conventional titanium alloys like Ti-6Al-4V Recent research and development in the other metallic alloys like stainless steels, Co based alloys etc. will be also discussed.